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dimmi ALEXANDER LEF., -OF SCRANTQN, PENNSYLVANIA.

Lette/rs Patent No. 87 ,502, dated March 2, 1869. I

WASH-BOILER.

The Schedule referred to in these Letters Patent and making part of the same,

To whom 'it may concern .i A l Be 1t known that I, ALEXANDER Len, ot Scranton, in the county of Luzerne, and State of Pennsylvania,

have invented certain new and useful Improvements' in Wash-Boilers; and I hereby declare the following to be a full, clear, and exact description of the sauro, reference being had to the accompanying drawings, in which- Figure 1 is a longitudinal vertical section of a washboiler, made in accordance with my invention, and

Figure 2 is a transverse vertical section of thc same.

My invention has reference to wash-boilers, in which a continuous circulation of the heated water is maintained by'mcans'of a false bottom, and pipes leading from the lower to the upper part of the boiler, and my object is to produce a simple and cheap device for et'- fecting this result.

To this end I place, within the boiler A, a semi-cylindrical or semi-oval metal shell, B, the edges of which rest on the bottom of the boiler, so as to form a small chamber, or separate compartment, nl, for the rec-eption of the heated water.

The shell, as will be seen by reference" to the drawing, covers but a small portion of the bottom, which,

between the edges of the shell and the sides of the boiler, is'entirely uncovered and exposed.

The device, however, is quite suiticient for the purposes for which it is intended, as,` in order to createthe necessary circulation, itis required to keep but a small space, such as is represented at a, free from the clothes -or other articles in the boiler.

Communication between the boiler and the interior of the shell is maintained through oblong openings b, near the bottom of the shell, `and the heated water passing through these openings, is forced up through the pipes C, at each end of the shell, and discharged from their upper ends upon theclothes in the boiler.

- ,The back, or upper part of the shell, upon which the clothes rest, is made without any apertures, so that the water can only enter through the lower openings b.

This arrangement has many advantages to recommendy it, for the circulation of the boiling water is much more active, and the current is stronger, inasmuch as there can be no escape from the top of the shell, except through the tube, while, on the contrary, if' the perforatious were made in the top, not only would the clothes partially close them, but the heated water and steam wouid also have a tendency to pass 'up through them, thus driving back and hindering the passage of the water through theclothes.

The nozzles c of the tubes 'are flattened, as shown in the drawings, so as to cause the w'ater to be ejected in a thin sheet, and thus spread over a greater` surface.

The' device described can be employed with any'V boiler, of ordinary or suitable construction, and may be removed therefrom when not in use, or when the boiler is required for another purpose.

I am aware that Letters Patent have been granted M. IV.' Staples, for a wash-boiler, in which the circu lation ofthe boiling water is maintained by means of a diaphragm, dividing the vessel into two compartments, in combination with pipes for leading thewater and steam from the lower into the upper compartment, but I make no broad claim to a boiler embodying this principle, the object I have in View being, as above stated, to leave as much room as possible in the vessel for the clothes, to simplify the construct-ion ofthe boiler, and to insure, as far as. possible, the free circulation ot the water and steam. These results I bed lieve to be secured by the employment of the device herein described.

IVhat I claim, therefore, and desire to secure by Letters Patent, is

The metallic shell or case B, constructed and arranged within the wash-boiler, in the manner de;

scribed, and provided with water and steam-discharge 

